Radio Shack Pro 84 - Manual (Page 14)

The Basics 14
Note: Always use 50-ohm, RG-58, or RG-8 coaxial
cable to connect an outdoor antenna. If the antenna
is over 50 feet from the scanner, use RG-8 low-loss
dielectric coaxial cable. If your antenna’s cable does
not have a BNC connector, your local RadioShack
store carries a variety of BNC adapters.
connecting an earphone/headphone
In a noisy area, you can use the supplied mono
headphones. When you use the headphones, set
the scanner’s VOLUME to the center position, then
adjust the volume controls of the headphones.
For private listening, you can plug a 1 /
8
-inch (3.5
mm) mini-plug earphone (not supplied) into the
headphone jack on top of your scanner.
Connecting the headphones or the earphone
automatically disconnects the internal speaker.
listening safely
To protect your hearing, follow these guidelines
when you use an earphone or headphones.